Online courses directory (684)

We've always been communicating.... as we moved from signal fires, to alphabets & electricity the problems remained the same. What is Information Theory?. Prehistory: Proto-writing. Ptolemaic: Rosetta Stone. Ancient History: The Alphabet. Source Encoding. Visual Telegraphs (case study). Decision Tree Exploration. Electrostatic Telegraphs (case study). The Battery & Electromagnetism. Morse Code & The Information Age. Morse code Exploration. What's Next?. Symbol Rate. Symbol Rate Exploration. Introduction to Channel Capacity. Message Space Exploration. Measuring Information. Galton Board Exploration. Origin of Markov Chains. Markov Chain Exploration. A Mathematical Theory of Communication. Markov Text Exploration. What's Next?. What is Information Theory?. Prehistory: Proto-writing. Ptolemaic: Rosetta Stone. Ancient History: The Alphabet. Source Encoding. Visual Telegraphs (case study). Decision Tree Exploration. Electrostatic Telegraphs (case study). The Battery & Electromagnetism. Morse Code & The Information Age. Morse code Exploration. What's Next?. Symbol Rate. Symbol Rate Exploration. Introduction to Channel Capacity. Message Space Exploration. Measuring Information. Galton Board Exploration. Origin of Markov Chains. Markov Chain Exploration. A Mathematical Theory of Communication. Markov Text Exploration. What's Next?.

How have humans protected their secret messages through history? What has changed today?. What is Cryptography?. Probability Space. The Caesar Cipher. Caesar Cipher Exploration. Frequency Fingerprint Exploration . Polyalphabetic Cipher. Polyalphabetic Exploration. The One-Time Pad. Perfect Secrecy Exploration. Frequency Stability. Coin flip sequences. Frequency Stability Exploration. The Enigma Encryption Machine (case study). Perfect Secrecy. Pseudorandom Number Generators. Random Walk Exploration. Ciphers vs. Codes. Shift Cipher. Caesar cipher encryption. Caesar Cipher Decryption. Caesar cipher frequency analysis. Vigenere cipher encryption. XOR Bitwise Operation. XOR & the One-Time Pad. XOR Exploration. Bitwise Operators. What's Next?. The Fundamental Theorem of Arithmetic. Public Key Cryptography: what is it?. The Discrete Logarithm Problem. Diffie-Hellman Key Exchange. RSA Encryption: step 1. RSA Encryption: step 2. RSA Encryption: step 3. Time Complexity (Exploration). Euler's Totient Function. Euler Totient Exploration. RSA Encryption: step 4. What should we learn next?. What is Modular Arithmetic?. Modulo Operator. Congruence Modulo. Congruence Relation. Equivalence Relations. The Quotient Remainder Theorem. Modular Addition & Subtraction. Modular Addition. Modular Multiplication. Modular Multiplication. Modular Exponentiation. Fast Modular Exponentiation. Fast Modular Exponentiation. Modular Inverses. Introduction. Primality Test Challenge. Trial Division. Level 1: Primality Test. Running Time. Level 2: measuring running time. Computer Memory (space). Binary Memory Exploration. Algorithmic Efficiency. Level 3: Challenge. Sieve of Eratosthenes. Level 4: Sieve of Eratosthenes. Primality Test with Sieve. Level 5: Trial division using sieve. The Prime Number Theorem. Prime density spiral. Prime Gaps. Time Space Tradeoff. Summary (what's next?). Randomized Algorithms (intro). Conditional Probability (Bayes Theorem) Visualized. Guess the coin. Random Primality Test (warm up). Level 9: Trial Divison vs Random Division. Fermat's Little Theorem. Fermat Primality Test. Level 10: Fermat Primality Test. What's Next?. What is Cryptography?. Probability Space. The Caesar Cipher. Caesar Cipher Exploration. Frequency Fingerprint Exploration . Polyalphabetic Cipher. Polyalphabetic Exploration. The One-Time Pad. Perfect Secrecy Exploration. Frequency Stability. Coin flip sequences. Frequency Stability Exploration. The Enigma Encryption Machine (case study). Perfect Secrecy. Pseudorandom Number Generators. Random Walk Exploration. Ciphers vs. Codes. Shift Cipher. Caesar cipher encryption. Caesar Cipher Decryption. Caesar cipher frequency analysis. Vigenere cipher encryption. XOR Bitwise Operation. XOR & the One-Time Pad. XOR Exploration. Bitwise Operators. What's Next?. The Fundamental Theorem of Arithmetic. Public Key Cryptography: what is it?. The Discrete Logarithm Problem. Diffie-Hellman Key Exchange. RSA Encryption: step 1. RSA Encryption: step 2. RSA Encryption: step 3. Time Complexity (Exploration). Euler's Totient Function. Euler Totient Exploration. RSA Encryption: step 4. What should we learn next?. What is Modular Arithmetic?. Modulo Operator. Congruence Modulo. Congruence Relation. Equivalence Relations. The Quotient Remainder Theorem. Modular Addition & Subtraction. Modular Addition. Modular Multiplication. Modular Multiplication. Modular Exponentiation. Fast Modular Exponentiation. Fast Modular Exponentiation. Modular Inverses. Introduction. Primality Test Challenge. Trial Division. Level 1: Primality Test. Running Time. Level 2: measuring running time. Computer Memory (space). Binary Memory Exploration. Algorithmic Efficiency. Level 3: Challenge. Sieve of Eratosthenes. Level 4: Sieve of Eratosthenes. Primality Test with Sieve. Level 5: Trial division using sieve. The Prime Number Theorem. Prime density spiral. Prime Gaps. Time Space Tradeoff. Summary (what's next?). Randomized Algorithms (intro). Conditional Probability (Bayes Theorem) Visualized. Guess the coin. Random Primality Test (warm up). Level 9: Trial Divison vs Random Division. Fermat's Little Theorem. Fermat Primality Test. Level 10: Fermat Primality Test. What's Next?.

Basic concepts of computer programming are introduced, starting with the notion of an algorithm. Emphasis is on developing the ability to write programs to solve practical computational problems.

Topics include:

• Algorithms
• Elements of C/C++ programming languages
• Basic data types
• Sequential and conditional execution
• Iterative solutions
• Arrays, matrices and their applications
• Functions
• Sorting and searching
• Elements of string processing
• Introduction to pointers
• Basics of Software Engineering
• Structures
• File Processing

Learners will read and understand many sample programs, and will have to write several on their own. This course deals with basic programming, and sets the foundation for solid programming practices for beginners.

This course is part of the Fundamentals of Computer Science XSeries Program: 

• Object-Oriented Programming
• Foundations of Data Structures
• Implementation of Data Structures
• Algorithms

ALISON ABC IT is a free online self-certifiable information technology (IT) course which comprehensively introduces you to IT literacy. ABC IT covers the basic concepts of computing and teaches how computing can be an everyday feature of life and work. It covers basic Microsoft Office computer applications and touch typing training.<br />

This course introduces computer programming as a creative discipline to generate sounds, images, animation and more.

Go beyond the basics of programming to understand object-oriented methodology, the approach to modular and reusable software systems.

Topics Include:

• Introduction to Object Oriented Programming
• Classes and Methods
• Polymorphism
• Inheritance
• Standard Library of C++

This course is part of the Fundamentals of Computer Science XSeries Program: 

• Programming Basics
• Foundations of Data Structures
• Implementation of Data Structures
• Algorithms

How does cellular technology enable massive surveillance? Do users have rights against surveillance? How does surveillance affect how we use cellular and other technologies? How does it affect our democratic institutions? Do you know that the metadata collected by a cellular network speaks volumes about its users? In this course you will explore all of these questions while investigating related issues in WiFi and Internet surveillance. The issues explored in this course are at the intersection of networking technology, law, and sociology and will appeal to anyone interested in the technical, political, and moral questions inherent in the use of information networks. The course will include broad overviews for the novice, while pointing to the detailed resources needed for those engaged in the development of corporate or governmental policies.

《程序设计实习》课程是北京大学的本科生主干基础课程。课程的主要目标有二： 一、掌握C++语言的语法和标准模板库，能用C++语言以面向对象的方法来编写规模较大的程序。 二、掌握枚举、递归、搜索、动态规划等基本的算法思想。通过大量的高强度的编程训练，提高动手能力，做到能较为熟练、完整、准确地实现自己设计的程序，为进一步学习其他计算机专业课程，或在其他专业领域运用计算机编程解决问题奠定良好的基础。

This course we will explore the foundations of software security. We will consider important software vulnerabilities and attacks that exploit them -- such as buffer overflows, SQL injection, and session hijacking -- and we will consider defenses that prevent or mitigate these attacks, including advanced testing and program analysis techniques. Importantly, we take a "build security in" mentality, considering techniques at each phase of the development cycle that can be used to strengthen the security of software systems.

“数据结构与算法”是计算机学科中的核心基础课程。课程的主要目标培养学生较全面地理解基本数据结构的概念和经典算法的思想及各种实现方法，掌握数据结构和算法的设计分析技术。根据所求解问题的性质选择合理的数据结构并对时间空间复杂性进行必要的控制，提高程序设计的质量。使得学生在将来的学习、研究和工作中，具备设计和实现高效的数据结构和算法的能力。

Explore how the web has changed our world in the past 25 years and what might happen next.

This course is a hands-on introduction to statistical data analysis that emphasises fundamental concepts and practical skills.

Explore the latest trends in digital marketing. Get beneath the hype. What are the implications? How will you respond?

Do you want to know what Gamification really is about? Do you want to learn how to design fun and engaging experiences? Are you ready to change your world with game design? Then join us in this MOOC!

Learn how to design and develop a mobile Web app. What about realising a real-time multi-player game? We show you the way to get your idea to the app store.

This course is presented in Mandarin.

If you are having difficulty viewing this video in mainland China, you can also find it here.

课程介绍视频也可以访问中国网站。

点击上方绿色按钮报名。

本课程适用于翻译硕士专业研究生、外语专业高年级本科生、翻译工作者以及外语爱好者等。

现代语言服务行业要求从业人员必须具有利用计算机及网络来使用各类技术辅助工具帮助其工作的能力，而不是仅仅学会几款狭义的计算机辅助翻译软件。

本课程主要讲授计算机辅助翻译技术的基础概念，学习多种计算机辅助翻译工具的使用方法，锻炼学生在技术环境下从事翻译工作等各类语言服务工作的能力，帮助学生理解信息化时代的语言服务工作。

课 程完整涵盖现代语言服务的基本情况介绍、翻译技术基本概念、语言服务项目执行过程的信息环境与信息技术、如何利用电子辞典、网络资源及语料库工具辅助翻译 工作、狭义和广义的计算机辅助翻译工具原理及实战演练、翻译内容质量评定、多人协同翻译项目、翻译管理等多方面的内容。作为翻译类专业学生的必修课程，本 课程适合语言类专业学生学习。通过课程的学习，有助于学习者了解现代语言服务行业，增强各类计算机辅助翻译工具的使用技能，提高包括翻译工作在内的各类语 言服务工作的效率。

该课程是“北大-德稻网络公开课程”中的一门，由北京大学与德稻教育联合提供。

This course is suitable for postgraduate students who major in Translation and Interpreting, undergraduate students majoring in foreign language, translators and language enthusiasts.

Those who work in modern language service industry are required to be capable of using computers and Internet to aid their translation job by adapting a variety of efficient tools, rather than just using word processor tools and several basic computer-aided translation software.

This course teaches the basic concepts of computer-aided translation technology, helps students learn to use a variety of computer-assisted translation tools, enhances their ability to engage in various kinds of language service in such a technical environment, and helps them understand what the modern language service industry looks like.

This course covers introduction to modern language services industry, basic principles and concepts of translation technology, information technology used in the process of language translation, how to use electronic dictionaries, Internet resources and corpus tools, practice of different computer-aided translation tools, translation quality assessment, basic concepts of machine translation, globalization, localization and so on. As a compulsory course for students majoring in Translation and Interpreting, this course is also suitable for students with or without language major background. By learning this course, students can better understand modern language service industry and their work efficiency will be improved for them to better deliver translation service.

The course is one of the PKU-DeTao MOOCs, which is a joint effort by Peking University and DeTao Masters Academy.

Are there any reference books for this course?

Students are recommended to read at least the following books.

1. Lynne Bowker, Computer Aided Translation, University of Ottawa Press, Ottawa,2002
2. Frank Austermühl, Electronics Tools for Translators, St. Jerome Publishing, Manchester,2001

Will this course provide an English course video?

Will this course provide an English course video?

本课程是否有参考教材？

为了能够更好得了解本课程所涉及的内容，学生可以阅读下面的资料：

1. Lynne Bowker, Computer Aided Translation, University of Ottawa Press, Ottawa, 2002
2. Frank Austermühl Electronics Tools for Translators, St. Jerome Publishing, Manchester, 2001(外研社曾翻印过，2006/07)
3. 史宗玲，计算机辅助翻译：MT＆TM，书林出版有限公司，台北，2004
4. C.K. Quah, Translation and Technology, 上海外语教育出版社,2008

You've learnt to develop Web sites and HTML5 apps. But what makes you a real Web professional? Complete your knowledge of quality assurance processes necessary to keep your Web apps running and maintainable.

Lernen Sie die Technologien, aus denen das Web besteht, und designen und entwickeln Sie Ihre eigene Webpräsenz. Von der Chronik des Internets über die Grundlagen des Webs und des Screendesigns bis hin zum Tuning der Website.

Lernen Sie, eine mobile Web-App zu designen und entwickeln. Vielleicht sogar ein Echtzeit-Multiplayer-Spiel? Wir zeigen Ihnen den Weg, wie Sie Ihre Idee in den App Store bringen.

The CS 61 series is an introduction to computer science, with particular emphasis on software and on machines from a pro